Paper Title:
Development of Numerical Analysis Software for the NDE by Using Dipole Model
  Abstract

The magnetic field distribution around a crack can be calculated more easily and quickly by using a dipole model than finite element method (FEM). This paper reports the development of numerical analysis software that uses an improved dipole model to analyze the magnetic field around cracks. The preprocessor in this software includes the crack formation software, which can distribute the magnetic charge per unit area, m, on the crack section area. Also the lift-off, measurement area and sensor interval, and magnetization direction can be considered in the preprocessor. Also, the postprocessor presents functions, such as the natural magnetic field distribution and ∂B/∂x, ∂B/∂y, as results. Also, the physical characteristics of the magnetic optical sensor and the Hall sensor are included in the postprocessor, and the magnetic field distribution can be changed to optical intensity and electrical signal distribution. The experiment results, which are obtained by using the magnetic camera on the crack, are compared with analysis results obtained by using the dipole model analysis software.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
2383-2386
DOI
10.4028/www.scientific.net/KEM.353-358.2383
Citation
J. Y. Lee, J. W. Jun, J. S. Hwang, S. H. Lee, "Development of Numerical Analysis Software for the NDE by Using Dipole Model", Key Engineering Materials, Vols. 353-358, pp. 2383-2386, 2007
Online since
September 2007
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Price
$32.00
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